Periodic Table/Gold/¹⁷⁷Au

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¹⁷⁷Au

Gold-177

Radioactive· Half-life: 1.50 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

79

Neutrons (N)

98

Mass Number (A)

177

Atomic Mass

176.976870AMU

Spin / Parity

1/2+

Binding E/A

7.616keV

Natural Abundance

Trace / None

Half-life

1.50 s

Decay Modesoverview · half-life · α · β⁻ · β⁺

α

40.0%

β⁺

60.0%

Decay Chain

¹⁷⁷AuGold1.50 s

β⁺60.0%

α¹⁷³Ir40.0%

¹⁷⁷PtPlatinum10.0 s

β⁺94.3%

α¹⁷³Os5.70%

¹⁷⁷IrIridium29.8 s

β⁺100.0%

α¹⁷³Re0.06%

¹⁷⁷OsOsmium3.00 min

β⁺100.0%

¹⁷⁷ReRhenium14.0 min

β⁺100.0%

¹⁷⁷WTungsten2.21 h

β⁺100.0%

¹⁷⁷TaTantalum2.35 d

β⁺100.0%

¹⁷⁷HfHafniumSTABLE

8-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Gold

168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210

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